[koromak]

Its so dependent on font size (or more accurately PPI) that its hard to pick. On my current monitor my favorite Berkely Mono looks thin and hard to read unless I bump up the size higher than I'd like. But drag it over to a Retina screen and it looks fantastic.

[layer8]

Yes, most (if not all) new fonts nowadays seem to assume (very) high DPI and also have no hinting for low DPI. Every time I check a font that is praised here, it looks terrible at small point sizes.